CyberSecurity Updates

Business Security Identity is effectively the new network boundary. It must be protected at all costs. Phil Muncaster 04 Dec 2025  •  , 4 min. read What do M&S and Co-op Group have in common? Aside from being among the UK’s most recognizable high street retailers, they were both recently the victims of a major ransomware breach. They were also both targeted by vishing attacks that elicited corporate passwords, providing their extorters with a critical…

ESET researchers have identified new MuddyWater activity primarily targeting organizations in Israel, with one confirmed target in Egypt. MuddyWater, also referred to as Mango Sandstorm or TA450, is an Iran-aligned cyberespionage group known for its persistent targeting of government and critical infrastructure sectors, often leveraging custom malware and publicly available tools. In this campaign, the attackers deployed a set of previously undocumented, custom tools with the objective of improving defense evasion and persistence. Among these…

Social Media From LinkedIn to X, GitHub to Instagram, there are plenty of opportunities to share work-related information. But posting could also get your company into trouble. Phil Muncaster 01 Dec 2025  •  , 5 min. read Employee advocacy has been around as a concept for over a decade. But what started out as a well-intentioned way to enhance corporate profile, thought leadership and marketing, also has some unintended consequences. When professionals post about their…

Data exposure by top AI companies, the Akira ransomware haul, Operation Endgame against major malware families, and more of this month’s cybersecurity news 28 Nov 2025 November 2025 is almost behind us, and it’s time for ESET Chief Security Evangelist Tony Anscombe to look at cybersecurity stories that raised the alarms, moved the needle or offered vital lessons over the past 30 or so days. Here’s some of what caught Tony’s eye this month: many…

Kids Online Online disagreements among young people can easily spiral out of control. Parents need to understand what’s at stake. Phil Muncaster 27 Nov 2025  •  , 5 min. read The digital world offers countless opportunities for self-expression, learning and personal development, but it’s also a place where grudges are easily harbored, disagreements can often spiral, and intimidation, harassment and revenge are never far away. Often, doxxing is the primary way online retaliation manifests. It…